Drilling and bolting device
US11274506B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 5, 2019 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Jan 8, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D20/003
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drill device includes a base frame, a feed frame supported for movement relative to the base frame, and a feed device for inserting a drill element into a rock surface. The base frame includes a pair of fluid cylinders. The feed frame extends along a feed axis and includes a plurality of guide bars aligned parallel to the feed axis. The feed device is supported for movement relative to the feed frame in a direction parallel to the feed axis. The feed device includes a first guide member and a second guide member. The first guide member engages a surface of at least one of the guide bars, and the second guide member engages another surface of at least one of the guide bars.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.